ns2.as40244.net has no CNAME records.
Question and response
Question
dig ns2.as40244.net. NS
Answer
The response has no answer records.
Authority
as40244.net. 10800 SOA ns1.as40244.net. dns.as40244.net. 2026031002 3600 1800 1209600 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0